okay so pallet town is now ranger union (kanto).team rocket is after a mew.(which you're protecting. pokeballs are replaced with ranger balls. mew is main legendery. no dimwits (jessie,james,meowth) well now we get to the storyline:
you wake up at ranger union kanto. the day before you were training using ranger union pokemon but today you have to get your own off a operator.you leave the corridor to find that there's a policeman. asking you to take a egg. you appect the egg. and protect it from harm.
is that good enough.